// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#pragma once

#include <vector>

namespace kumo::pollux::dwio::common {
    class PositionProvider {
    public:
        explicit PositionProvider(const std::vector<uint64_t> &positions)
            : position_{positions.begin()}, end_{positions.end()} {
        }

        uint64_t next();

        bool hasNext() const;

    private:
        std::vector<uint64_t>::const_iterator position_;
        std::vector<uint64_t>::const_iterator end_;
    };
} // namespace kumo::pollux::dwio::common
